package com.csjbot.blackgaga.util;

import android.content.Context;
import android.util.TypedValue;

/**
 * Created by xiasuhuei321 on 2017/8/17.
 * author:luo
 * e-mail:xiasuhuei321@163.com
 */

public class DensityUtils {

    private DensityUtils() {
          /* cannot be instantiated */
        throw new UnsupportedOperationException("cannot be instantiated");

    }


    /**
     * dp转px
     *
     * @param context
     * @param val
     * @return
     */

    public static int dp2px(Context context, float dpVal) {
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
                dpVal, context.getResources().getDisplayMetrics());
    }


    /**
     * sp转px
     *
     * @param context
     * @param val
     * @return
     */

    public static int sp2px(Context context, float spVal) {
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
                spVal, context.getResources().getDisplayMetrics());
    }


    /**
     * px转dp
     *
     * @param context
     * @param pxVal
     * @return
     */

    public static float px2dp(Context context, float pxVal) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (pxVal / scale);
    }


    /**
     * px转sp
     *
     * @param fontScale
     * @param pxVal
     * @return
     */

    public static float px2sp(Context context, float pxVal) {
        return (pxVal / context.getResources().getDisplayMetrics().scaledDensity);
    }


}
